I posted info and links about this over on the Head-Fi Decware Taboo III appreciation thread yesterday. As you all know the Taboo III is designed to be a headphone amp first (forget that it's also a great speaker amp). It has 4 headphone jacks: 2 phono and 2 XLR. Since they are mounted flat on the top plate, dirt can fall into the openings. To avoid this I started looking for something to cover the openings. I found rubber plugs for the XLR jacks (and I thought the phono as well) at Markertek.com. I just got the covers today and can report that the "NDF" XLR covers work exceptionally well and look great. The "NDP" phono, not so much, they are too big for the phono jack holes. They are all made of relatively soft black rubber.

The price is inexpensive (.59 cents each for "NDF" and .79 cents each for "SCDF"; shipping costs are about $5.50 priorty mail. The links for the XLR's (there are two types) are:

I recommend the "NDF" type, it's simply fits into the XLR jack, the "SCDM" requires you remove the XLR jack screws and fit this rubber cover under the XLR plate and then replace the screws.

Steve, if you should chance to read this post, I strongly recommend you buy these in bulk and add a couple of bucks to the cost of the amp and supply all Taboo IIIs with these covers. I only wish the "NDP" phone covers fit correctly for the 2 phono jacks.

I did consider the phono jacks you mentioned, but settled on two dirt cheap cream colored 1 inch long nylon screws with wide knurled tops for hand tightening I had available. I cut them to 1/2" length and they drop in and cover the openings nicely.

I'm sure others will come up with similar solutions. It seems a rubber phono jack plug, similar to the XLR plugs I found, isn't made.

I ordered those black dummies from that place. However, on the 1/4 inch female opening, I'll go you one better. I bought a quarter to eighth inch adapter, in case somebody wanted to use phones that had a 1/8 inch plug.